clock.tan.summary

一些Verilog学习程序A

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Timing Analyzer Summary
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Type           : Worst-case tsu
Slack          : N/A
Required Time  : None
Actual Time    : 3.918 ns
From           : turn
To             : sec1[1]
From Clock     : --
To Clock       : clk
Failed Paths   : 0

Type           : Worst-case tco
Slack          : N/A
Required Time  : None
Actual Time    : 29.668 ns
From           : hour1[2]
To             : alert
From Clock     : turn
To Clock       : --
Failed Paths   : 0

Type           : Worst-case tpd
Slack          : N/A
Required Time  : None
Actual Time    : 10.917 ns
From           : clk_1k
To             : alert
From Clock     : --
To Clock       : --
Failed Paths   : 0

Type           : Worst-case th
Slack          : N/A
Required Time  : None
Actual Time    : 5.517 ns
From           : change
To             : countb
From Clock     : --
To Clock       : turn
Failed Paths   : 0

Type           : Clock Setup: 'clk'
Slack          : N/A
Required Time  : None
Actual Time    : 68.50 MHz ( period = 14.598 ns )
From           : hour1[3]
To             : hour1[5]
From Clock     : clk
To Clock       : clk
Failed Paths   : 0

Type           : Clock Setup: 'turn'
Slack          : N/A
Required Time  : None
Actual Time    : 96.24 MHz ( period = 10.391 ns )
From           : hour1[3]
To             : hour1[5]
From Clock     : turn
To Clock       : turn
Failed Paths   : 0

Type           : Clock Setup: 'mode'
Slack          : N/A
Required Time  : None
Actual Time    : Restricted to 340.02 MHz ( period = 2.941 ns )
From           : m[0]
To             : m[1]
From Clock     : mode
To Clock       : mode
Failed Paths   : 0

Type           : Clock Hold: 'clk'
Slack          : Not operational: Clock Skew > Data Delay
Required Time  : None
Actual Time    : N/A
From           : hour1[3]
To             : hour1[3]
From Clock     : clk
To Clock       : clk
Failed Paths   : 102

Type           : Clock Hold: 'turn'
Slack          : Not operational: Clock Skew > Data Delay
Required Time  : None
Actual Time    : N/A
From           : hour1[3]
To             : hour1[3]
From Clock     : turn
To Clock       : turn
Failed Paths   : 53

Type           : Clock Hold: 'mode'
Slack          : Not operational: Clock Skew > Data Delay
Required Time  : None
Actual Time    : N/A
From           : m[0]
To             : hour[0]$latch
From Clock     : mode
To Clock       : mode
Failed Paths   : 34

Type           : Total number of failed paths
Slack          : 
Required Time  : 
Actual Time    : 
From           : 
To             : 
From Clock     : 
To Clock       : 
Failed Paths   : 189

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